Thermafleece UltraWool batts

£141.91£157.54 + VAT & delivery

Rich in British sheep’s wool – UltraWool is designed to give extra thermal performance where depth is limited and our highest level of acoustic performance

SKU: NBS-EDR-QISUW Categories: , , ,


Thermafleece UltraWool batt (slab) is a high density, highly efficient insulation made from 75% British sheep’s wool and 25% recycled polyester. Made in the UK, UltraWool is the ideal choice if you are looking for maximum thermal performance when space is at a premium. What’s more, with a density of 31 kg/m3 Thermafleece UltraWool helps provide exceptional acoustic insulation performance in wall, floor and roof systems. Research shows that using 75% wool in combination with recycled fibres outperforms alternative products with a higher percentage of wool. Our wool rich blend ensures you get the full benefit of sheep’s wool with enhanced performance, breathability, durability and sustainability.


  Application Guide – Wall

  Fact Sheet

  Application Guide – Roof

  Typical U-Values

Additional information

Dimensions N/A
Thermal conductivity (W/mK)

0.035 W/mK


390mm, 590mm


50mm, 70mm, 90mm